On Tue 17 Jun 2014 at 17:24:24 +0800, Bret Busby wrote: > vlc would open the file, but, Movie Player (mplayer ?) will not - it > returns an error "failure to parse stream"). There appears to be no information about this .qs file extension so it would be interesting to know what vlc thinks it is. Codec information is under the tools menu. Any chance of satisfying our curiosity? Thanks.